1,3-Dimethyl-4-ethenylbenzene 1,3-Dimethyl-4-vinylbenzene 1-Vinyl-2,4-dimethylbenzene 2,4-Dimethylstyrene 2234-20-0 Benzene, 1-ethenyl-2,4-dimethyl- NSC62089 Styrene, 2,4-dimethyl- WLN: 1U1R B1 D1